252250240 has 64 divisors (see below), whose sum is σ = 657875520. Its totient is φ = 91724800.

The previous prime is 252250171. The next prime is 252250247. The reversal of 252250240 is 42052252.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (252250247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10876 + ... + 24955.

It is an arithmetic number, because the mean of its divisors is an integer number (10279305).

Almost surely, 2^252250240 is an apocalyptic number.

252250240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252250240 is an abundant number, since it is smaller than the sum of its proper divisors (405625280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252250240 is a wasteful number, since it uses less digits than its factorization.

252250240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35861 (or 35849 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 252250240 is about 15882.3877298094. The cubic root of 252250240 is about 631.8449654436.

The spelling of 252250240 in words is "two hundred fifty-two million, two hundred fifty thousand, two hundred forty".